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初始化项目, 添加TDesign等包

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zhengw
2025-11-28 16:49:36 +08:00
commit 3e53beb7bb
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miniprogram/miniprogram_npm/tdesign-miniprogram/tabs/tabs.js Normal file
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import{__awaiter,__decorate}from"tslib";import{SuperComponent,wxComponent}from"../common/src/index";import props from"./props";import config from"../common/config";import touch from"../mixins/touch";import{getRect,uniqueFactory}from"../common/utils";import{getObserver}from"../common/wechat";const{prefix:prefix}=config,name=`${prefix}-tabs`,getUniqueID=uniqueFactory("tabs");let Tabs=class extends SuperComponent{constructor(){super(...arguments),this.options={pureDataPattern:/^currentLabels$/},this.behaviors=[touch],this.externalClasses=[`${prefix}-class`,`${prefix}-class-item`,`${prefix}-class-active`,`${prefix}-class-track`,`${prefix}-class-content`],this.relations={"../tab-panel/tab-panel":{type:"descendant",linked(t){this.children.push(t),this.initChildId(),t.index=this.children.length-1,this.updateTabs()},unlinked(t){this.children=this.children.filter(e=>e.index!==t.index),this.updateTabs(()=>this.setTrack()),this.initChildId()}}},this.properties=props,this.controlledProps=[{key:"value",event:"change"}],this.observers={value(t){t!==this.getCurrentName()&&this.setCurrentIndexByName(t)}},this.data={prefix:prefix,classPrefix:name,tabs:[],currentLabels:[],currentIndex:-1,trackOption:{lineWidth:0,distance:0,isInit:!0},offset:0,scrollLeft:0,tabID:"",placement:"top"},this.lifetimes={created(){this.children=this.children||[]},attached(){wx.nextTick(()=>{this.setTrack()}),getRect(this,`.${name}`).then(t=>{this.containerWidth=t.width}),this.setData({tabID:getUniqueID()})}},this.methods={onScroll(t){const{scrollLeft:e}=t.detail;this.setData({scrollLeft:e})},updateTabs(t){const{children:e}=this,i=e.map(t=>t.data);i.forEach(t=>{"string"==typeof t.icon&&(t.icon={name:t.icon})}),this.setData({tabs:i},t),this.setCurrentIndexByName(this.properties.value)},setCurrentIndexByName(t){const{children:e}=this,i=e.findIndex(e=>e.getComputedName()===`${t}`);i>-1&&this.setCurrentIndex(i)},setCurrentIndex(t){if(t<=-1||t>=this.children.length)return;const e=[];this.children.forEach((i,s)=>{const r=t===s;r===i.data.active&&i.initialized||i.render(r,this),e.push(i.data.label)});const{currentIndex:i,currentLabels:s}=this.data;i===t&&s.join("")===e.join("")||this.setData({currentIndex:t,currentLabels:e},()=>{this.setTrack()})},getCurrentName(){if(this.children){const t=this.children[this.data.currentIndex];if(t)return t.getComputedName()}},calcScrollOffset:(t,e,i,s)=>s+e-.5*t+i/2,getTabHeight(){return getRect(this,`.${name}`)},getTrackSize(){const{bottomLineMode:t}=this.properties,e={fixed:`.${prefix}-tabs__track`,auto:`.${prefix}-tabs__item--active .${prefix}-tabs__item-inner`,full:`.${prefix}-tabs__item--active`};return new Promise((i,s)=>{this.trackWidth?i(this.trackWidth):getRect(this,e[t]||e.fixed).then(t=>{t&&i(t.width)}).catch(s)})},setTrack(){return __awaiter(this,void 0,void 0,function*(){const{children:t}=this;if(!t)return;const{currentIndex:e}=this.data;if(!(e<=-1))try{const t=yield getRect(this,`.${prefix}-tabs__item`,!0),i=t[e];if(!i)return;let s=0,r=0,n=0;if(t.forEach(t=>{s<e&&(r+=t.width,s+=1),n+=t.width}),this.containerWidth){const t=this.calcScrollOffset(this.containerWidth,i.left,i.width,this.data.scrollLeft),e=n-this.containerWidth;this.setData({offset:Math.min(Math.max(t,0),e)})}else this._hasObserved||(this._hasObserved=!0,getObserver(this,`.${name}`).then(()=>this.setTrack()));const a=yield this.getTrackSize();"line"===this.data.theme&&(r+=(i.width-a)/2);const h=void 0===this.previousIndex;(h||this.previousIndex!==e)&&(this.previousIndex=e,this.setData({trackOption:{lineWidth:a,distance:r,isInit:h}}))}catch(t){this.triggerEvent("error",t)}})},onTabTap(t){const{index:e}=t.currentTarget.dataset;this.changeIndex(e)},onTouchStart(t){this.properties.swipeable&&this.touchStart(t)},onTouchMove(t){this.properties.swipeable&&this.touchMove(t)},onTouchEnd(){if(!this.properties.swipeable)return;const{direction:t,deltaX:e,offsetX:i}=this;if("horizontal"===t&&i>=50){const t=this.getAvailableTabIndex(e);-1!==t&&this.changeIndex(t)}},onTouchScroll(t){this._trigger("scroll",t.detail)},changeIndex(t){const e=this.data.tabs[t],{value:i,label:s}=e;(null==e?void 0:e.disabled)||t===this.data.currentIndex||this._trigger("change",{value:i,label:s}),this._trigger("click",{value:i,label:s})},getAvailableTabIndex(t){const e=t>0?-1:1,{currentIndex:i,tabs:s}=this.data,r=s.length;for(let t=e;i+e>=0&&i+e<r;t+=e){const e=i+t;if(!(e>=0&&e<r&&s[e]))return i;if(!s[e].disabled)return e}return-1}}}initChildId(){this.children.forEach((t,e)=>{t.setId(`${this.data.tabID}_panel_${e}`)})}};Tabs=__decorate([wxComponent()],Tabs);export default Tabs;